Battery HP model L11421-1C6 COSLIGHT515974 NCM 3.72Ah — rechargeable 3.72 Ah cell for portable devices

Rechargeable HP battery cell using NCM (nickel‑cobalt‑manganese) chemistry with a nominal capacity of 3.72 Ah. This single cell is intended as a replacement or spare for compatible portable devices and is designed to provide stable discharge behavior and reliable energy storage for repair, refurbishment, or extending device runtime.

Advantages

The cell delivers a defined nominal capacity of 3.72 Ah with chemistry that balances energy density and cycle life. Its construction supports steady voltage under load and predictable discharge characteristics, which simplifies compatibility checks during device repair or battery pack rebuilding. The rechargeable design allows multiple charge cycles, reducing the need for frequent replacements and supporting longer-term device operation.

Подходит для

• Ремонт и восстановление аккумуляторных блоков портативной техники
• Замена изношенных или повреждённых элементов в сборках батарей
• Продление времени работы совместимых устройств между подзарядками
• Испытаний и проверки электрических характеристик в сервисных мастерских

Key specifications

• Chemistry: NCM (nickel‑cobalt‑manganese)
• Nominal capacity: 3.72 Ah
• Cell type: rechargeable single cell for portable devices
• Designed for steady discharge and repetitive charge cycles
• Typical use temperature range compatible with consumer portable electronics

How to use

Before installation, verify device compatibility by comparing physical dimensions, voltage range and connector type. Install the cell into the battery pack or device following manufacturer service guidelines, ensuring correct polarity and secure mechanical fit. Use a charger and charge controller compatible with NCM cells and observe recommended charging voltages and currents. After installation, perform a controlled charge and initial discharge cycle to confirm proper operation and capacity behavior.

Usage recommendations

Store cells in a cool, dry place at moderate state of charge (around 30–50%) if not used immediately. Avoid exposure to high temperatures, mechanical shock, and direct contact with conductive materials. For safety and longevity, use appropriate protection circuitry when assembling cells into packs, and follow local regulations for transportation and disposal of lithium‑based batteries.